Samsung DVM S Series Installation Manual page 70

Electrical wiring work
<When the module combination is not in the tables of "Outdoor unit combination">
3 phase 4wires 380 - 415 V~
MCCB+
ELB
or
ELCB
Main unit
Single phase 2 wires
(220-240 V~)
MCCB+
ELB
or
ELCB ELCB
Wired remote
controller
Connect a power cable of the outdoor unit after checking that R-S-T-N (3 phase 4 wire) is properly connected. (If the 380-
415 V power is supplied to the N phase, PCB and other electrical part will be damaged.)
Communication cable between indoor and outdoor units and communication cable between outdoor units has no
polarity.
Arrange the cables with a cable tie.
❇ ELCB and ELB must be installed since there is risk of electric shock or fire when they are not installed.
70
MCCB+ MCCB+
ELB ELB
or or
ELCB ELCB
Sub unit 1
Communication
cable (Outdoor unit ~
Outdoor unit)
Communication cable
(Outdoor unit ~ Indoor
unit)
Grounding Grounding Grounding
Wired remote Wired remote
controller controller
Sub unit 2
Main unit
Communication cable
(Outdoor unit ~ Indoor
unit)
Sub unit
Communication cable
(Outdoor unit ~ Outdoor
unit)